ackage trans;

package shuiahui666;

public class shuiahui {
	public static void main(String args[]) {
		shuiahui6 tortoise;
		shuaihui666 rabbit;
		tortoise = new shuiahui6();
		rabbit = new shuaihui666();
		tortoise.start();
		rabbit.start();
		System.out.println("?");
		System.out.println("??");
	}
}